<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .p1 {
            width: 500px;
            height: 500px;
            background-color: aqua;
        }

        .p2 {
            width: 500px;
            height: 55px;
            margin: auto;
            background-color: aquamarine;
        }

        .p3 {
            width: 335px;
            height: 39px;
            margin-top: 5px;
            border-radius: 270px;
        }

        .p4 {
            width: 100px;
            height: 50px;
            border-radius: 270px;
            margin-right: 10px;
        }

        .p5 {
            width: 500px;
            height: 350px;
            background-color: aquamarine;
            margin-top: 95px;
        }

        .p6 {
            width: 450px;
            height: 50px;
            background-color: blanchedalmond;
            margin-left: 20px;
        }

        .p7 {
            width: 450px;
            height: 50px;
            background-color: blanchedalmond;
            margin-left: 20px;
            margin-top: 20px;
        }

        .p8 {
            width: 450px;
            height: 50px;
            background-color: blanchedalmond;
            margin-left: 20px;
            margin-top: 20px;
        }

        .p9 {
            width: 450px;
            height: 50px;
            background-color: blanchedalmond;
            margin-left: 20px;
            margin-top: 20px;
        }

        .p10 {
            width: 50px;
            height: 40px;
        }

        .p11 {
            width: 50px;
            height: 40px;
            margin-left: 250px;
        }
        .p12{
            width:200px;
            height: 300px;
            background-color: blue;
            position: relative;
            top: -391px;
            left: 610px;
        }
    </style>
</head>

<body>
    <div class="p1">
        <div class="p2">
            <input class="p3">
            <button class="p4">添加</button>
        </div>
        <div class="p5">
            <div class="p6">
                <input type="text" class="p10">
                <span>玩游戏</span>
                <input type="text" class="p11">
            </div>
            <div class="p7">
                <input type="text" class="p10">
                <span>敲代码</span>
                <input type="text" class="p11">
            </div>
            <div class="p8">
                <input type="text" class="p10">
                <span>吃饭</span>
                <input type="text" class="p11">
            </div>
            <div class="p9">
                <input type="text" class="p10">
                <span>睡觉</span>
                <input type="text" class="p11">
            </div>
        </div>
        <div class="p12">
      
              <button><p>开</p></button><br>
              <button><p>全部</p></button><br>
              <button><p>进行中</p></button><br>
              <button><p>已完成</p></button>
        </div>
    </div>
    <script> 
       
    </script>

</body>

</html>